Hole Saw arbor supplied with extended length 6.35mm (1/4") pilot drill. Shank size 11mm (7/16"). Screw thread 5/8"-18.

•Arbor suitable for use with MPH Hole Saws
•Quick hitch arbor, allowing instant change of hole saw without tools and without removing the arbor from the chuck.

Brand:Starrett
Type:Drive Arbor
Holesaw Diameter Range:1-1/4 to 8-9/32 in
Shank Type:Hex
Shank Size:7/16 in
Pilot Drill Size:1/4 in
Includes:Extended Length HSS Pilot Drill
Tool Compatibility:Deep Cut Hole Saw;Multi-Purpose Hole Saw